JPH0819970B2 - Electromagnetically controlled spring clutch mechanism - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electromagnetically controlled spring clutch mechanism.

<Prior Art> Conventionally, an electromagnetically controlled spring clutch mechanism using a coil spring means has been used to transmit a driving force of an input rotary element that is rotationally driven. An example of this type of electromagnetically controlled spring clutch mechanism is disclosed in, for example, Japanese Patent Application Laid-Open No. 59-175633. In such an electromagnetically controlled spring clutch mechanism, an input rotary element is fixed and an output rotary element is rotatable. A shaft member attached to the rotor, a rotor that rotates together with the shaft member, and an armature assembly disposed on one side of the rotor, the armature being opposed to one surface of the rotor, and rotatable to the shaft member. And an armature assembly including a biasing spring member for biasing the armature in a direction away from one surface of the rotor.
Electromagnetic means for magnetically attracting the armature to the one side of the rotor against the elastic biasing action of the biasing spring member, and coil spring means having one end coupled to the armature assembly and the other end coupled to the output rotary element. I have it. In such a clutch mechanism, the driving force of the input rotary element is not transmitted to the output rotary element when the electromagnetic means is deenergized, but the armature assembly and the output rotary element rotate relatively when the electromagnetic means is biased. This causes the coil spring means to contract, thus transmitting the driving force of the input rotary element to the output rotary element.

However, each of the electromagnetically controlled spring clutch mechanisms described above selectively transmits the drive of the input rotary element that is rotationally driven in the predetermined direction to the output rotary element, and therefore,
The drive force of the input rotary element that is rotationally driven in the predetermined direction and the direction opposite to the predetermined direction cannot be used to transmit the drive force to the output rotary element as required. The advent of a new electromagnetically controlled spring clutch mechanism has been desired.

Further, although not limited to the electromagnetic control spring clutch mechanism of the above-described form, as will be described in detail later, when the frictional force between the input rotary element and the shaft member is large, the input is performed even when the electromagnetic means is deenergized. The driving force from the rotating element is directly transmitted to the output rotating element, which may cause the output rotating element to rotate.

<Object of the Invention> The present invention has been made in view of the above facts, and an object thereof is to transmit a driving force of an input rotary element that is rotationally driven in a predetermined direction and a direction opposite to the predetermined direction to an output side. (EN) Provided is a novel electromagnetically controlled spring clutch mechanism.

<Summary of the Invention> According to the present invention, a shaft member rotatably mounted, and an input rotary element rotatably mounted on the shaft member and driven to rotate in a predetermined direction and a direction opposite to the predetermined direction, A first spring clutch mechanism arranged on the shaft member on one side of the input rotating element; and a second spring clutch mechanism arranged on the shaft member on the other side of the input rotating element. The first spring clutch mechanism includes (a) a rotor that is rotated integrally with the shaft member, (b) is disposed between the rotor and the input rotary element, and faces one side of the rotor. A support member rotatably mounted on the shaft member and disposed between the input rotary element of the rotor, and the armature disposed between the support member and the armature. Elastically biased away from the one side of the rotor An armature assembly including a biasing spring member, and (c) electromagnetic means for magnetically attracting the armature to the one side of the rotor against the elastic biasing action of the biasing spring member when biased. , (D) a first boss member that rotates integrally with the shaft member, (e) a second boss member that rotates integrally with the input rotary element, and (f) the first boss member and the first boss member. And a coil spring means for drivingly connecting the first boss member and the second boss member by fitting over the two boss members and contracting the second boss member. (A) a rotor rotated integrally with the shaft member; (b) an armature disposed between the rotor and the input rotary element and facing one side of the rotor; the rotor and the input rotation; Mounted between the element and rotatably mounted on the shaft member An armature assembly including a holding member and a biasing spring member disposed between the support member and the armature to elastically bias the armature away from the one side of the rotor; Electromagnetic means for magnetically attracting the armature to the one side of the rotor against the elastic biasing action of the biasing spring member, and (d) a first boss that rotates integrally with the shaft member. A member, (e) a second boss member that rotates integrally with the input rotary element, and (f) a first boss member and a second boss member that are fitted and contracted over the first boss member and the second boss member. A coil spring means for drivingly connecting the first boss member and the second boss member, and when either one of the first spring clutch mechanism and the second spring clutch mechanism is energized. Rotation of the input rotary element in the predetermined direction to the shaft member Reached, the those other is energized to transmit rotation said predetermined constant direction opposite the direction of the input rotating element in the shaft member, the electromagnetic control spring clutch mechanism is provided, characterized in that.

<Preferred Specific Example of the Invention> A specific example of the electromagnetically controlled spring clutch mechanism configured according to the present invention will be described below with reference to the accompanying drawings.

Mainly referring to FIG. 1, an illustrated electromagnetically controlled spring clutch mechanism, generally designated by reference numeral 2, is a shaft member 4, an input rotary element such as a gear 6 rotatably mounted on the shaft member 4, a first rotary member.
The spring clutch mechanism 8 and the second spring clutch mechanism 10 are provided. As shown in FIG. 1, the shaft member 4 is rotatably mounted on, for example, the support bases 12 and 14, and the gear 6, the first spring clutch mechanism 8 and the first spring clutch mechanism 8 and Two spring clutch mechanisms 10 are arranged.
The shaft member 4 is connected to the operating shaft via a connecting means 16, for example.
18 (indicated by a chain double-dashed line in FIG. 1) is connected. In the specific example, one end of the shaft member 4 penetrates the support base 12 and projects outward (a part of this projecting end is a bearing).
It is rotatably supported through 20). The connecting means 16 comprises a cylindrical connecting member 22. A relatively large-diameter receiving recess 24a is provided at one end of the connecting member 22, and the small-diameter end 18a of the operating shaft 18 is positioned in the receiving recess 24a and the fixing screw 26 is screwed into the receiving recess 24a for connection. The member 22 and the operating shaft 18 are connected. Further, a receiving recess 24b having a relatively small diameter (in the specific example, the receiving recesses 24a and 24b communicate with each other) is also provided at the other end of the connecting member 22, and the shaft member is provided in the receiving recess 24b. The shaft member 4 of the connecting member 22 is connected by positioning the projecting end portion of 4 and screwing the fixing screw 28. Instead of the fixing screws 26 and 28, a fixing pin may be used to connect them. Therefore, when the shaft member 4 is rotated as described later, the connecting means 16
The operating shaft 18 is also rotated integrally with the shaft member 4 via the.

Next, referring to FIG. 2 together with FIG. 1, the elements related to the first spring clutch mechanism 8 and me will be described. In the specific example, a large diameter portion 4a is provided substantially in the center in the axial direction between the support bases 12 and 14 of the shaft member 4, and the gear 6 is rotatably mounted on the large diameter portion 4a. A first spring clutch mechanism 8 is arranged between the gear 6 and one of the supporting bases 12, and a second spring clutch mechanism 10 described later is arranged between the gear 6 and the other supporting base 14.

The illustrated first spring clutch mechanism 8 includes a rotor 30, an armature assembly 32, an electromagnetic means 34 and a coil spring means 36. To further explain, the electromagnetic means 34 is arranged at one end of the shaft member 4, specifically, at an inner portion of the support base 12 of the shaft member 4. The electromagnetic means 34 shown is a field core 38.
And an electromagnetic coil 40 mounted on the field core 38, and the field core 38 is rotatably mounted on the shaft member 4 via the sleeve member 42 (see FIG. 1). A locking portion 44 is provided on the outer peripheral surface of the field core 38.
A notch 46 is formed in this. On the other hand, the supporting base 12 is provided with a locking protrusion 48 by bending a part of the supporting base 12 rearward.
It is locked in the notch 46 of 44 (see FIG. 1). Therefore, the electromagnetic means 34 is not rotated by the rotation of the shaft member 4 described later.

Further, a portion between the electromagnetic means 34 of the shaft member 4 and the gear 6,
That is, the rotor 30 and the armature assembly 32 are arranged inside the electromagnetic means 34. In the specific example, the rotor 30 and the armature assembly 32 are mounted on the first boss member 50 as required, and the rotor 30, the armature assembly 32 and the first boss member 50 are unitized to form a unit assembly. . Referring also to FIG. 3, the first boss member 50 has a small diameter portion 52 provided at one end portion (the left end portion in FIGS. 1 to 3) and the other end portion (FIGS. 1 to 3). Large diameter portion 54 provided at the right end in the figure) and medium diameter portion provided at the middle portion
56 and. A pair of notches 58 that define a pin receiving portion is formed in the small diameter portion 52 of the first boss member 50, and a pin hole 60 formed by penetrating the shaft member 4 in the notch 58.
Both ends of the pin member 62 mounted in (Fig. 2) are received. Further, the illustrated rotor 30 has an annular base portion 64, an annular portion 66 arranged outside the annular base portion 64, and a connecting portion 68 connecting the annular base portion 64 and the annular portion 66. Such rotor
30 is fixed to one end of the first boss member 50 by press-fitting the annular base portion 64 into the small diameter portion 52 of the first boss member 50.
It is rotated together with 50. In the specific example, as the rotor 30 is fixed to the small-diameter portion 52 of the first boss member 50, a pair of recesses 70 is also formed on the inner peripheral edge of the annular base portion 64 of the rotor 30. The concave portion 70 formed in the rotor 30 is the first
The pin receiving portion is defined in cooperation with the notch 58 formed in the boss member 50, and both end portions of the pin member 62 mounted on the shaft member 4 are provided with the notch 58 as shown in the enlarged view of FIG. 58 and the above recess
70 (thus allowing the rotor 30 to receive the first boss member).
When fixing to the small diameter portion 52 of the 50, the recess 70 of the rotor 30 and the notch 58 of the small diameter portion 52 are aligned and press-fitted). With this structure, the small diameter portion of the rotor 30 and the first boss member 50 is formed.
Even when the press-fitting state of 52 is relatively weak, the rotor 30 is reliably rotated integrally with the shaft member 4 via the pin member 62. In addition, the amateur assembly 32 of the specific example is
72, a support member 74 and a biasing spring member 76 are included. The support member 74 is composed of a short tubular member, and has a first boss member 50.
It is rotatably attached to the medium diameter portion 56. The inner peripheral edge of one end surface (left surface in FIGS. 1 to 4) of the support member 74 is
An annular flange 78 is provided. This support member 74 is
It is preferably formed from lightweight plastic. The armature 72 is composed of an annular plate having an outer diameter substantially the same as the outer diameter of the annular portion 66 of the rotor 30, and is attached to the support member 74 via a bias spring member 76. More specifically, the bias spring member 76 is mounted on the annular flange 78 of the support member 74, and the annular center portion 80 is fixed to one end surface of the support member 74 as described later. The illustrated biasing spring member 76 has a plurality (three in the specific example) of protrusions 82 extending outward from the annular central portion 80 in a sickle shape, and the free ends of each of the plurality of protrusions 82 have an armature 72. Is fixed to one surface (a surface opposite to the surface facing the rotor 30) by a fixing member 84 such as a rivet. Therefore, the armature assembly 32 is disposed on one side of the rotor 30, that is, on the right side in FIG. Acts to bias.
As shown in the specific example, the biasing spring member 76 is preferably fixed to the support member 76 as follows. The illustrated armature assembly 32 further includes a plate-shaped spring fixing member. The illustrated spring fixing member is composed of an annular plate member 86 substantially corresponding to the shape of the annular central portion 80 of the biasing spring member 76. A plurality of (three in the specific example) locking projections 88 are provided on the periphery of the plate member 86 at a circumferential interval by bending a part thereof. On the other hand, a plurality of (three in the specific example) rectangular insertion holes 90 are formed in the annular central portion 80 of the biasing spring member 76 corresponding to each of the locking projections 88, and further in the support member 74. A rectangular through hole 92 is formed corresponding to each of the insertion holes 90. Therefore, when the bias spring member 76 and the plate member 86 are attached to the annular flange 78 of the support member 74, the plate member
Each locking projection 88 of 86 corresponds to the insertion hole 90 of the corresponding bias spring member 76.
And through the through hole 92 of the support member 74 to the other side of the support member 74 (projected as shown by the solid line in FIG. 5), and deform the projecting end of the locking projection 88 as required. By locking the other end of the support member 74,
The annular central portion 80 of the biasing spring member 76 is fixed between the plate member 86 and the support member 74. Plate member 86 in a specific example
The engagement of the support member 74 with the engagement protrusion 88 is preferably as shown in an enlarged manner in FIG. That is, as shown in FIG. 5, the right end portion of each through hole 92 of the support member 74 (see FIGS. 1 to 3).
It is preferable that the right end portion in FIGS. 5 and 5 is expanded to the right so that the deformed portion of the locking projection 88 is accommodated in the expanded portion 92a of the through hole 92. Support member 74, bias spring member 76, and plate member 86
The assembly element consisting of can be miniaturized. When the expansion portion 92a is provided in the through hole 92 as in the specific example, a pressing tool 94 such as a punch for deforming the locking projection 88 is formed.
It is desirable to make the tip of the concave shape concave so that its tip surface 94a defines an arcuate surface. By doing so, the projection of the locking projection 88 which is projected as shown by the solid line in FIG. 5 is deformed as required by the action of the pressure tool 94 as shown by the chain line in FIG. The deformed portion can be securely locked to the expanded portion 92a of the through hole 92.

In the unit assembly of the specific example, a supporting member is further provided.
A plurality of (three in the specific example) projections 96 are provided on one end face of the 74 at intervals in the circumferential direction, and the annular central portion 80 of the biasing spring member 76 corresponds to the projection 96 in the circumferential direction. A plurality of circular openings 98 are formed at intervals to define the projection receiving portion. The tip of each protrusion 96 is an opening of the biasing spring member 76.
It penetrates through 98, goes beyond the plate member 86 and the armature 72, and extends toward one side of the rotor 30, and its tip is brought into contact with or close to one side of the rotor 30. In the example, the protrusion
In association with the extension of 96 as described above, a semi-circular cutout 100 is formed in the peripheral portion of the plate member 86 corresponding to the opening 98. As such, each protrusion 96 is received in the opening 98 and notch 100, and the support member 7
4 and the biasing spring member 76 to transmit a driving force (in other words, to receive an Asian load generated between the biasing spring members 76 of the support member 74, that is, a load in the rotational direction), and as will be described later. It acts to improve the responsiveness of the first spring clutch mechanism 8. In order to further improve the responsiveness of the first spring clutch mechanism 8, as shown in a concrete example, the tip end portion of the annular flange 78 of the support member 74 also projects beyond the bias spring member 76 and the plate member 86, and its tip end. Is preferably brought into contact with or close to one surface of the rotor 30, and in a specific example, the tip surfaces of the protrusions 96 and the annular flange 78 define substantially the same plane that is substantially parallel to one surface of the rotor 30. Is configured.

In the illustrated embodiment, the unit assembly is mounted on the shaft member 4 as required by press fitting the first boss member 50. In the specific example, the required portion 4b of the shaft member 4
Is processed such as knurling,
The right end surface of the first boss member 50 is press-fitted into 4b such that the right end surface of the first boss member 50 contacts the left end surface of the large diameter portion 4a, and the first boss member 50 is rotated integrally with the shaft member 4.

Referring again to FIGS. 1 and 2, an annular boss portion 102 is provided on one surface of the gear 6 (left surface in FIGS. 1 and 2).
Is integrally provided, and a cylindrical second boss member 104 is mounted in the boss portion 102. In the specific example, the second boss member 104 has a through hole 106 (specifically, 2 in the specific example) formed in the inner peripheral portion of the gear 6 (specifically, the inner portion of the boss portion 102).
It is mounted so as to rotate integrally with the gear 6 by inserting a pair of protrusions 108 provided on the end faces thereof into each of the gears 6. The second boss member 104 is
It extends leftward in FIGS. 1 and 2 toward the first boss member 50. The second boss member 104 is the gear 6
It is also possible to form integrally with.

The coil spring means 36 is fitted over the first boss member 50 and the second boss member 104. The large diameter portion 54 of the first boss member 50 of the unit assembly is the same as the second boss member 10 described above.
The end surfaces of the boss members 50 and 104 extend toward each other and are brought into contact with or close to each other. The outer diameter of the large diameter portion 54 of the first boss member 50 and the outer diameter of the second boss member 104 are substantially equal to each other. In the specific example, the coil spring means 36 includes the large diameter portion of the first boss member 50. It is fitted over both 54 and the second boss member 104. In the specific example, the coil spring means 36
1 and 2 shows a right-hand winding when viewed from the left side (therefore, when the gear 6 is rotated in the direction indicated by the arrow 110 (FIG. 2), the support member 74 has a force for preventing the rotation thereof. Is applied, the support member 74 is wound in a direction in which it contracts when rotated relative to the gear 6. One end 36a of the coil spring means 36 is inserted into a notch 112 formed in the other end of the support member 74 (in the specific example, one of a plurality of notches 112 formed at intervals in the circumferential direction). The other end 36b is connected to the notch 114 formed in the annular boss portion 102 of the gear 6 (in the specific example, four notches 114 are formed at intervals in the circumferential direction). It is connected to this by being inserted into.

As such, when the gear 6 is rotated in the direction indicated by the arrow 110 and the electromagnetic means 34 is energized, the gear 6 and the armature assembly 32 are relatively moved, as will be described later. It is rotated, which causes the coil spring means 36 to contract and thus the driving force from the gear 6 is applied to the second boss member 10.
4, transmitted to the shaft member 4 via the coil spring means 36 and the first boss member 50.

Next, the second spring clutch mechanism 10 and its related elements will be described with reference to FIG. 6 together with FIG. The second spring clutch mechanism 10 arranged between the gear 6 and the support base 14 includes a rotor 116, an armature assembly 118, an electromagnetic means 120 and a coil spring means 122, like the first spring clutch mechanism 8. Cage, second spring clutch mechanism 1
Rotor 116 at 0, amateur assembly 118, electromagnetic means 1
The configurations of 20 and the coil spring means 122 are substantially the same as the configurations of the rotor 30, the actuator assembly 32, the electromagnetic means 34 and the coil spring means 36 in the first spring clutch mechanism 8. Therefore, the outline of the second spring clutch mechanism 10 will be described.

The electromagnetic means 120 in the second spring clutch mechanism 10 is
The other end portion of the shaft member 4, more specifically, the other end portion of the shaft member 4, specifically, the inner portion of the support base 14 of the shaft member 4.
The illustrated electromagnetic means 120 has a field core 120 and an electromagnetic coil 122 attached to the field core 120, and the field core 120 is rotatably attached to the shaft member 4 via a sleeve member 124 (first See figure). Field core 12
An engaging portion 126 is provided on the outer peripheral surface of 0, and a notch 128 is formed in the engaging portion 126. On the other hand, the support base 14 has a locking protrusion 130 formed by bending a part of the support base 14 rearward.
Is provided, and the locking protrusion 130 is
It is locked in the notch 128 (see FIG. 1). Therefore, the electromagnetic means 120 is not rotated by the rotation of the shaft member 4 described later.

Further, a rotor 116 and an armature assembly 118 are arranged at a portion between the electromagnetic means 120 of the shaft member 4 and the gear 6, that is, inside the electromagnetic means 120. In the specific example, the rotor 116 and the armature assembly 118 also include the first boss member 132.
Mounted as required on the rotor 116, amateur assembly 1
The 18 and the first boss member 132 are unitized to form a unit assembly. The first boss member 132 has a large-diameter portion 13 provided at one end (the left end in FIGS. 1 and 6).
4, a small-diameter portion 136 provided at the other end (right end in FIGS. 1 and 6), and a medium-diameter portion 1 provided at an intermediate portion thereof.
8 and has. A pair of notches 140 that define a pin receiving portion is formed in the small diameter portion 136 of the first boss member 132, and the other pin hole 142 (which is formed by penetrating the shaft member 4 in the notch 140). Both ends of the pin member 144 mounted in FIG. 6) are received. In addition, the illustrated rotor 116 includes an annular base portion 146 and an annular portion 14 disposed outside the annular base portion 146.
8 and a connecting portion 150 that connects the annular base portion 146 and the annular portion 148. The rotor 116 is fixed at one end by press-fitting the annular base portion 146 into the small diameter portion 136 of the first boss member 132, and is rotated integrally with the first boss member 132. In the specific example, a pair of recesses 152 is also formed on the inner peripheral edge of the annular base portion 146 of the rotor 116. The recess 152 formed in the rotor 116 cooperates with the notch 140 formed in the first boss member 132 to define a pin receiving portion, and both ends of the pin member 144 attached to the shaft member 4 are It is received in the notch 140 and the recess 152 (thus, when the rotor 116 is fixed to the small diameter portion 136 of the first boss member 132, the recess 152 of the rotor 116 and the notch 140 of the small diameter portion 136 are aligned with each other. Press in). The example armature assembly 118 also includes an armature 154, a support member 156, and a biasing spring member 158. The support member 156 is composed of a short tubular member, and is rotatably attached to the medium diameter portion 138 of the first boss member 132.
An annular flange (FIG. 1) is provided on the inner peripheral edge of the end surface (right surface in FIG. 1) of the support member 156. The support member 156 is preferably made of lightweight plastic. The armature 154 is composed of an annular plate having an outer diameter substantially the same as the outer diameter of the annular portion 148 of the rotor 116, and is attached to the support member 156 via a biasing spring member 158. That is, the bias spring member 158 is mounted on the annular flange of the support member 156, and the annular center portion 160 is fixed to the end surface of the support member 156 as required. The bias spring member 158 shown has a plurality (three in the specific example) of protrusions 162 extending outward from the annular central portion 160 in a sickle shape, and the free end portion of each of the plurality of protrusions 162 has an armature 154. One side (Figs. 1 and 6)
It is fixed to the left surface in the figure, which is the surface opposite to the surface facing the rotor 116, by a fixing member 164 such as a rivet. Therefore, also in the second spring clutch mechanism 10, the armature assembly 118 is disposed on one side of the rotor 116, that is, on the left side in FIG. 1, and the biasing spring member 158 transfers the armature 154 to one side of the rotor 116, that is, in FIG. At, it acts to elastically bias in the direction away from the left surface. Also in the second spring clutch mechanism 10, the biasing spring member
Substantially the same as the first spring clutch mechanism 8, the 158 is preferably fixed to the supporting member 156 by a ring-shaped plate member 166 forming a spring fixing member as required.

In the second spring clutch mechanism 10, further, like the first spring clutch mechanism 8, a plurality of protrusions 168 extending toward one surface of the rotor 116 at circumferentially spaced intervals on the end surface of the support member 156. Is preferably provided, and the support member 1
It is preferable that the tip end of the annular flange provided at 56 is brought into contact with or close to the one surface of the rotor 116.

In the illustrated embodiment, the unit assembly is mounted to the shaft member 4 as required by press fitting the first boss member 132. In the specific example, the required portion of the shaft member 4
4C is also processed such as knurling, and the left end surface of the first boss member 132 is press-fitted into such a portion 4C so that the left end surface of the first boss member 132 contacts the right end surface of the large diameter portion 4a. It is rotated integrally with the member 4.

An annular boss portion 170 is integrally provided on the other surface of the gear 6 (right surface in FIGS. 1 and 6), and a cylindrical second boss member 172 is mounted in the boss portion 170. In the specific example, the second boss member 172 rotates integrally with the gear 6 by inserting a pair of protrusions 174 provided on the end face from the other side of the gear 6 into the through hole 106 formed in the gear 6. It is installed to do. This second boss member 172
Extends rightward in FIGS. 1 and 6 toward the first boss member 132. The second boss member 172 can also be formed integrally with the gear 6.

The coil spring means 122 is fitted over the first boss member 132 and the second boss member 172. First boss member of unit assembly in second spring clutch mechanism 10
The large diameter portion 134 of 132 extends toward the second boss member 172, and the end surfaces of both boss members 132 and 172 are in contact with or in close proximity to each other. The large diameter portion 134 of the first boss member 132
And the outer diameter of the second boss member 172 are substantially equal,
In the specific example, the coil spring 122 is fitted over both the large diameter portion 134 of the first boss member 132 and the second boss member 172. In the specific example, the coil spring means 122 is right-handed when viewed from the right side in FIGS.
When the support member 156 is rotated in the direction indicated by the arrow 176 (FIG. 6), a force that prevents the support member 156 from rotating is applied to rotate the support member 156 relative to the gear 6. It is wound in the direction of contraction). One end 122a of the coil spring means 122 is inserted into a notch formed in the other end of the support member 156 (in the specific example, one of a plurality of notches formed at intervals in the circumferential direction). The other end 122b is thereby connected to the notch 178 formed in the annular boss portion 170 of the gear 6 (in the specific example, one of the four notches 178 formed at intervals in the circumferential direction). It is linked to this by being inserted into.

As such, when the gear 6 is rotated in the direction indicated by arrow 176 and the electromagnetic means 120 is energized,
As will be described later in detail, the gear 6 and the armature assembly 118 are rotated relative to each other, whereby the coil spring means 122 is contracted, and thus the driving force from the gear 6 is generated by the second boss member 172 and the coil spring means 122. And is transmitted to the shaft member 4 via the first boss member 132.

In the electromagnetically controlled spring clutch mechanism 2 as described above, the armature assemblies 32 and 118 are provided on one side of the rotors 30 and 116 in the first spring clutch mechanism 8 and the second spring clutch mechanism 10 as shown in FIG. Placed and rotor 3
Electromagnetic means 34 and 120 are arranged on the other side of 0 and 116, and
The various constituent elements of the spring clutch mechanism 8 and the various constituent elements of the second spring clutch mechanism 10 are substantially symmetrically arranged on both sides in the axial direction of the shaft member 4 with respect to the gear 6. That is, in the first spring clutch mechanism 8, the second boss member 104, the coil spring means 36, and the first boss member 5 are directed from one surface of the gear 6 to the left in FIG.
0, the armature assembly 32, the rotor 30, and the electromagnetic means 34 are arranged, and in the second spring clutch mechanism 10, the gear 6
The second boss member 172, the coil spring means 122, the first boss member 132, the armature assembly 118, the rotor 116, and the electromagnetic means 120 are arranged from the other surface to the right in FIG.

The illustrated electromagnetically controlled spring clutch mechanism 2 further includes electromagnetic means 34 and 120 when used, for example, as described below.
Since the driving force from the gear 6 may be directly transmitted to the shaft member 4 at the time of deenergizing the shaft member 4, the shaft member 4 may rotate. Therefore, a braking means (see FIG. 1) associated with the shaft member 4 is provided as reference numeral 180. Has been done. The braking means 180 will be described later.

Next, with reference to FIG. 1, FIG. 2 and FIG. 6, the operation and effect of the electromagnetically controlled spring clutch mechanism 2 having the above-described configuration will be described.

First, the case where the gear 6 is rotated in the predetermined direction shown by the arrow 110 (FIG. 2) will be described. In such a case, the electromagnetic means 34 of the first spring clutch mechanism 8 is energized and deenergized, and The driving force of the gear 6 is selectively transmitted to the shaft member 4 (the shaft member 4 constitutes an output element).

That is, when the electromagnetic means 34 is biased while the gear 6 is rotated in the direction indicated by the arrow 110, the armature 72 resists the male biasing action of the biasing spring member 76 by the magnetic attraction force of the electromagnetic means 34. 1 to the left in FIG.
It is magnetically attracted to one side of the armature 72 and the armature 72 and the rotor 30 are brought into a connected state. On the other hand, the gear 6 is rotated in the direction indicated by the arrow 110 (FIG. 2), and the support member 74 is also rotated in the same direction via the coil spring means 36 (support member 74).
The bias spring member 76 and the armature 72 are also rotated integrally with this). Therefore, when the armature 72 and the rotor 30 are magnetically attracted and brought into a connection state, a force that prevents the rotation of the support member 74 acts due to the shaft member 4 being stopped. By doing so, a relative speed is generated between the gear 6 and the support member 74 due to the rotation inhibiting force, and the coil spring means 36 is contracted due to the speed difference. In this way, the second boss member 104 and the first boss member 50 are connected via the coil spring means 36, and the shaft member 4 has the first boss member 50, the coil spring means 36, and the second boss member 104. Through gear 6
Is drivingly connected to. Thus, the rotational force of the gear 6 in the direction indicated by the arrow 110 is transmitted to the shaft member 4, and the shaft member 4, and thus the actuating shaft 18 connected thereto, follows the rotation of the gear 6 and the arrow.
It is rotated in the direction indicated by 110.

On the other hand, when the electromagnetic means 34 is de-energized, the elastic biasing action of the biasing spring member 76 causes the armature 72 to move to the right in FIG. 1 and separate from one side of the rotor 30, and the connection between the armature 72 and the rotor 30 described above. The state is released (that is, the armature 72 is returned to the position shown in FIG. 1 by the action of the biasing spring member 76). When the armature 72 returns, the biasing spring member interposed between the armatures 72 of the support member 74.
The male biasing action of 76 causes the rotor 72 to move away from one side of the rotor 30, so that the connection between the actuator 72 and the rotor 30 is quickly released. Also, at the time of this return, the armature 72 tends to be slightly inclined with respect to the shaft member 4 due to the gap existing between the outer diameter of the middle diameter portion 56 of the first boss member 50 and the inner diameter of the support member 74. However, in the specific example, since the projection 96 provided on one end surface of the support member 74 is brought into contact with or close to one surface of the rotor 30, the front end of the projection 96 of the support member 74 when the armature 72 is slightly tilted. Since the surface comes into contact with one surface of the rotor 30, the decrease in responsiveness due to the contact of the armature 72 with the one surface of the rotor 30 is effectively prevented. Furthermore, in the specific example, since the tip of the annular flange 78 of the support member 74 is also in contact with or close to one surface of the rotor 30, so-called rattling of the support member 74 itself can be reduced, and the responsiveness is further reduced. To be prevented. When the connection between the armature 72 and the rotor 30 is released, the elastic force of the coil spring means 36 accumulated during the above-described drive transmission causes the support member 74 to further rotate slightly in the direction indicated by the arrow 110, and the coil spring means 36. Is expanded. When the coil spring means 36 is expanded, the support member 74 is rotatably mounted on the first boss member 50, and the bias spring member 76, the armature 72 and the plate member 86 are mounted on the support member 74. As such, the support member 74 can be easily and quickly rotated as required by the elastic force of the coil spring means 36 without subjecting it to significant resistance. When the coil spring means 36 expands in this way,
The connection between the second boss member 104 and the first boss member 50 by the coil spring means 36 is released, and thus the drive connection between the gear 6 and the shaft member 4 is released. When the electromagnetic means 34 is deenergized, as is easily understood, the support member 74, the biasing spring member 76 and the armature 72 only rotate via the coil spring means 36 in association with the rotation of the gear 6. . Also,
When the gear 6 is rotated in the direction indicated by the arrow 110, the electromagnetic means 120 of the second spring clutch mechanism 10 is not energized, and therefore, in the second spring clutch mechanism 10, the arrow 110 of the gear 6 is rotated. Along with the rotation in the direction indicated by, the supporting member 156 and the biasing spring member 158 are connected via the coil spring means 122.
And the amateur 154 only rotates.

Contrary to the above, when the gear 6 is rotated in the direction shown by the arrow 176 (FIG. 6), the electromagnetic means 120 of the second spring clutch mechanism 10 is energized and deenergized, which causes the gear 6 to rotate. The driving force of 6 is selectively transmitted to the shaft member 4.

That is, when the electromagnetic means 120 is biased while the gear 6 is rotated in the direction shown by the arrow 176, the magnetic attraction of the electromagnetic means 120 causes the armature 154 to resist the elastic biasing action of the biasing spring member 158. The rotor moves to the right in FIG.
It is magnetically attracted to one surface of the armature 116, and the armature 154 and the rotor 116 are connected. This causes a relative speed difference between the gear 6 and the support member 156, and the coil spring means 122 contracts due to the speed difference. When contracted in this way, the second boss member 172 and the first boss member 132 are connected via the coil spring means 122, and the shaft member 4 becomes the first boss member 132, the coil spring means 122, and the second boss member. 172
It is drivingly connected to the gear 6 via. Thus, the rotational force of the gear 6 in the direction indicated by the arrow 176 is transmitted to the shaft member 4, and the shaft member 4, and thus the actuating shaft 18 connected thereto, rotates in the direction indicated by the arrow 176 in association with the rotation of the gear 6. To be done.

On the other hand, when the electromagnetic means 120 is deenergized, the bias spring member 158
Due to the elastic biasing action of the armature 154, the armature 154 moves to the left in FIG. 1 and separates from one surface of the rotor 116, and the above-mentioned connection state between the armature 154 and the rotor 116 is released (that is, the armature 154 has It returns to the position shown in FIG. 1 by the action). In this way, the elastic force of the coil spring means 122 accumulated during the above-described drive transmission causes the support member 156 to further rotate slightly in the direction indicated by the arrow 176, and the coil spring means 122 is expanded. When the coil spring means 122 is expanded as described above, the second boss member 172 and the first boss member 172 are connected to each other.
The connection with the boss member 132 by the coil spring means 122 is released, and thus the drive connection between the gear 6 and the shaft member 4 is released. When the electromagnetic means 120 is deenergized, as is easily understood, the rotation of the gear 6 is accompanied by the rotation of the support member 156, the bias spring member 158, and the armature 154 via the coil spring means 122. is there. Therefore, also in the second spring clutch mechanism 10, the first spring clutch mechanism 8
An effect similar to is achieved. In addition, the gear 6 is arrowed and 176
The electromagnetic means 34 of the first spring clutch mechanism 8 are not energized when rotating in the direction indicated by
In the spring clutch mechanism 8, the support member 74, the bias spring member 76, and the armature 72 only rotate via the coil spring means 36 in association with the rotation of the gear 6 in the direction indicated by the arrow 176.

In the electromagnetically controlled spring clutch mechanism 2, the rotors 30 and 116 in the first spring clutch mechanism 8 and the second spring clutch mechanism 10 and the armature assembly 32 are further included.
And 118, as well as the first boss members 50 and 132, are unitized as a unit assembly, which requires fewer assembly elements and is of particular importance for the rotors 30 and 116 and the armature 7.
The spacing of 2 and 158 can also be kept constant. In addition, the armatures 72 and 154 are supported by the plate members 86 and 166 via the biasing spring members 76 and 158, and the supporting members 74 and 156.
Since the plate members 86 and 166 are fixed to one end surface of the armatures 72 and 154, the plate members 86 and 166 act substantially evenly over the annular center parts 80 and 160 of the armatures 72 and 154, and the annular center parts 80 and 160 are fixed. And the support members 74 and 156 can be securely fixed, and the bias spring members 76 and 158,
It is also possible to downsize the assembly of support members 74 and 156 and plate members 86 and 166. Further, by doing so, it is possible to prevent the deformation of the armatures 72 and 154 due to the fixing to the support members 74 and 156, and the responsiveness is also improved due to this.

Furthermore, in the electromagnetically controlled spring clutch mechanism 2 shown, the first boss member 50 of the first spring clutch mechanism 8 is press-fitted from one side of the shaft member 4 and abuts on one end surface of the large diameter portion 4a. First in the second spring clutch mechanism 10
Boss member 132 of the large-diameter portion 4 is press-fitted from the other side of the shaft member 4
Since it is in contact with the other end surface of a, the first boss members 50 and 1
Gear 6 located between first boss members 50 and 132 with 32
Also, the movement of the second boss members 104 and 172 with respect to the shaft member 4 is reliably prevented, and further, for example, the electromagnetic control spring clutch mechanism 2 is vertically arranged (the shaft member 4 is vertically arranged).
Even in such a case, the gaps between the various components are not concentrated in one place due to the provision of the large diameter portion 4a. Therefore, the first boss members 50 and 132 and the second boss members
Part of the coil spring means 36 and 122 is surely prevented from entering between the boss members 104 and 172.

Next, referring to FIG. 7 together with FIG. 1, a brake means 180 of a specific example will be described. Illustrated braking means 1
Reference numeral 80 includes a rotating member 182. The other end of the shaft member 4 penetrates the support base 14 and projects outward, and a short tubular rotating member 182 is attached to the projecting end. In the specific example, a through hole 184 is formed through the rotary member 182, and the pin member 186 is press-fitted into the through hole 184 and a hole (not shown) formed in the shaft member 4 by press fitting. Rotating member 1
82 is fixed to the shaft member 4. Therefore, the rotating member 182
Rotates integrally with the shaft member 4. In the specific example, further, on the inner surface of the rotating member 182 (that is, the surface facing the support base 14),
A friction member 188 formed of a material having a high friction coefficient such as synthetic leather or synthetic rubber is attached.

On the other hand, the other end of the shaft member 4 is supported by the support base 14 via the sleeve member 190. A flange portion 196 is integrally provided with the sleeve member 190 at one end. In this sleeve member 190, the flange portion 196 is located inside the support base 14, that is, the flange portion 196 is connected to the support base 14 and the electromagnetic means 120.
It is mounted on the support base 14 so as to be located in between, and its sleeve body 197 extends outward through an opening formed in the support base 14. In a specific example, as clearly shown in FIG.
A pair of flat surfaces 190a are provided on the outer surfaces of the sleeve body 197 that face each other.
(Only one of which is shown in FIG. 7) is formed, and the support base 14 is formed with an opening having a shape corresponding to the outer shape of the longitudinal section of the sleeve main body 197. When positioned in the opening,
The sleeve member 190 does not rotate relative to the support base 14. The braking means 180 further comprises a braking member 192.
Is included. The braking member 192 composed of a sleeve-shaped member is formed with a through hole 199 having a shape corresponding to the outer shape of the sleeve body 197 in the vertical cross section. The sleeve body is on the circumference
A pair of flat surfaces 192a corresponding to the pair of flat surfaces 190a existing on the outer peripheral surface of 197) are formed.
Are mounted on the outside of the sleeve body 197 of the sleeve member 192. Therefore, as will be readily understood, the braking member 192
Does not rotate relative to the sleeve member 190, but is relatively movable in the axial direction of the sleeve member 190, that is, in the left-right direction in FIG. In the specific example, a flange portion 198 corresponding to the outer shape of the rotating member 182 is also integrally formed at the right end of the braking member 192. Further, between the flange portion 193 and the support base 14, a braking member 192 is fitted and a coil spring 194 (which constitutes a biasing means) is disposed. The coil spring 194 acts on the flange portion 198 to bias the braking member 192 toward the rotating member 182, that is, to the right in FIG. 1, so that the end surface of the flange portion 198 of the braking member 192 is The action of the coil spring 194 elastically presses the surface of the friction member 188 arranged on the inner surface of the rotating member 182. In the specific example, the friction member 188 is provided on the rotating member 182, but instead of this, the braking member 192 or both the rotating member 182 and the braking member 192 may be provided with friction members.

If the braking means 180 is not provided, the shaft member 4 may rotate. More specifically, if the coefficient of friction between the gear 6 and the shaft member 4 is large, the rotational force of the gear 6 is directly transmitted to the shaft member 4 when the electromagnetic means 34 and 120 are deenergized, and thus relatively transmitted. Shaft member 4 with a small force
Could rotate. This tendency is due to the frictional force between the gear 6 and the shaft member 4, in other words, the coefficient of friction between the shaft member 4 of the gear 6, and the radial direction of the gear 6 acting on the gear 6 (that is, substantially with respect to the axis of the shaft member 4). When the frictional force is large, the shaft member 4 rotates and the electromagnetic means 34 and 120 are de-energized, but the working shaft 18 rotates due to the influence of the load in the vertical direction). .

On the other hand, when the brake means 180 is attached to the shaft member 4 as in the specific example, the rotation of the shaft member 4 by a relatively weak force acts by the brake means 180, that is, the rotation member 182. The frictional force between the braking members 192 can surely prevent the rotation, and thus the rotation of the shaft member 4 when the electromagnetic means 34 and 120 are deenergized can be prevented. In the specific example, the friction member 18 is provided between the rotating member 182 and the braking member 192.
8 is interposed, and further, the rotating member 182 and the braking member 192 are pressed against each other by the action of the coil spring 194. Therefore, the rotation of the shaft member 4 when the electromagnetic means 34 and 120 are deenergized is further ensured. Can be prevented.

The above-mentioned braking means 180 is not limited to the electromagnetically controlled spring clutch mechanism 2 shown in the drawing, but may be, for example, Japanese Patent Application No. 60-7843.
The same can be applied to the electromagnetically controlled spring clutch mechanism disclosed in the specification and drawings of No. 9.

The electromagnetically controlled spring clutch mechanism as described above can be conveniently applied to, for example, a massager by using the electromagnetically controlled spring clutch mechanism in combination as shown in FIGS. 8 and 9. In FIG. 8 and FIG. 9, two electromagnetic control spring clutch mechanisms 2a and 2b are arranged between the supporting bases 12 and 14 at a predetermined interval. The electromagnetic control spring clutch mechanisms 2a and 2b have substantially the same structure as the electromagnetic control spring clutch mechanism 2 shown in FIGS. 1 to 7, and therefore detailed description thereof will be omitted.

A rotary shaft 200 is further rotatably mounted between the support bases 12 and 14. A gear 202 is attached to the rotary shaft 200, the gear 202 is meshed with a gear 6a in one electromagnetic control spring clutch mechanism 2a, and the gear 6a is meshed with a gear 6b in the other electromagnetic control spring clutch mechanism 2b. . The rotary shaft 200 is drivingly connected to a drive source such as an electric motor (not shown) capable of rotating in the forward and reverse directions. Therefore, as shown in FIG. 8, the rotation shaft 20 is rotated by the normal rotation of the drive source (not shown).
When 0 is rotated in the direction indicated by arrow 204, gear 6a is rotated in the direction indicated by arrow 210 via gear 202, and gear 6b is further rotated.
Is rotated in the direction indicated by arrow 212. On the other hand, when the rotating shaft 200 is rotated in the direction indicated by the arrow 206 by the reverse rotation of the drive source (not shown), the gear 6a is rotated in the direction indicated by the arrow 208 via the gear 202, and the gear 6b is further rotated by the arrow 214. Is rotated in the direction indicated by.

In the compound clutch mechanism shown in the figure, as will be easily understood from the above description, when the rotary shaft 200 is rotated in the direction indicated by the arrow 204, the first spring clutch mechanism in the one electromagnetically controlled spring clutch mechanism 2a. 8a and the second spring clutch mechanism 10b in the other electromagnetically controlled spring clutch mechanism 2b are energized and deenergized (at this time, the second spring clutch mechanism 10a in the one electromagnetically controlled spring clutch mechanism 2a and the other electromagnetic The first spring clutch mechanism 8b in the control spring clutch mechanism 2b is not biased.) Conversely to the above, when the rotary shaft 200 is rotated in the direction shown by the arrow 206, one electromagnetic control spring The second spring clutch mechanism 10a in the clutch mechanism 2a and the first spring clutch mechanism 8b in the other electromagnetically controlled spring clutch mechanism 2b are energized and deenergized (this The second spring clutch mechanism 10b of the first spring clutch mechanism 8a and the other of the electromagnetic control spring clutch mechanism 2b in one of the solenoid control spring clutch mechanism 2a will not be energized). Incidentally, in the illustrated specific example, the gear 6a and the gear 6b are meshed so as to rotate in opposite directions.
When 6b is drivingly connected to rotate in the same direction (for example, an idle gear is interposed between gear 6a and gear 6b), rotation shaft 200 is rotated in the direction indicated by arrow 204. The electromagnetically controlled spring clutch mechanism 2a and
The first spring clutch mechanisms 8a and 8b in 2b are energized and deenergized (at this time, the electromagnetically controlled spring clutch mechanisms 2a and 8b
The second spring clutch mechanisms 10a and 10b in 2b are not urged), and contrary to the above, when the rotary shaft 200 is rotated in the direction indicated by the arrow 206, the electromagnetically controlled spring clutch mechanisms 2a and 2b. The second spring clutch mechanisms 10a and 10b in (1) are biased and deenergized (at this time, the first spring clutch mechanisms 8a and 8b in the electromagnetically controlled spring clutch mechanisms 2a and 2b are not biased).

When the first spring clutch mechanism 8a of the electromagnetically controlled spring clutch mechanism 2a is biased while the rotary shaft 200 is rotating in the direction indicated by the arrow 204, the first spring clutch mechanism
The turning force of the gear 6a in the direction indicated by the arrow 210 is transmitted to the shaft member 4a via the 8a, and thus the operating shaft 18a is rotated in the direction indicated by the arrow 210. In addition, when the second spring clutch mechanism 10b of the electromagnetically controlled spring clutch mechanism 2b is biased at the time described above, the rotational force of the gear 6b in the direction indicated by the arrow 212 is transmitted through the second spring clutch mechanism 10b. Transmitted to the member 4b, the actuating shaft 18b is thus rotated in the direction indicated by arrow 212.

On the other hand, when the second spring clutch mechanism 8b of the electromagnetically controlled spring clutch mechanism 2a is biased while the rotary shaft 200 is rotating in the direction indicated by the arrow 206, the first spring clutch mechanism 8b causes the electromagnetic spring to move. The turning force of the gear 6a in the direction indicated by the arrow 208 is transmitted to the shaft member 4a, and thus the operating shaft 18a is rotated in the direction indicated by the arrow 208. Further, when the first spring clutch mechanism 10a of the electromagnetically controlled spring clutch mechanism 2b is attached at the time described above, the gear 6 via the first spring clutch mechanism 10a.
Rotational force in the direction indicated by arrow 214 of b is transmitted to the shaft member 4b,
Thus, the operating shaft 18b is rotated in the direction indicated by the arrow 214.

When the first spring clutch mechanism 8a (or 8b) and the second spring clutch mechanism 10a (or 10b) in the electromagnetically controlled spring clutch mechanism 2a (or 2b) are deenergized,
Since the braking means 180a (or 180b) acts on the shaft member 4a (or 4b), the rotation of the gear 6a (or 6b) does not rotate the shaft member 4a (or 4b).

<Effects of the Invention> The electromagnetically controlled spring clutch mechanism according to the present invention is configured as described above, and includes a shaft member rotatably mounted, a rotatably mounted shaft member, and a predetermined direction and a direction opposite to the predetermined direction. An input rotating element that is driven to rotate, a first spring clutch mechanism arranged on the shaft member on one side of the input rotating element, and a first spring clutch mechanism arranged on the shaft member on the other side of the input rotating element. A second spring clutch mechanism, and when any one of the first spring clutch mechanism and the second spring clutch mechanism is energized, the shaft member rotates the input rotary element in the predetermined direction. Since the rotation of the input rotary element in the direction opposite to the predetermined direction is transmitted to the shaft member, the rotation of the input rotary element is driven in the predetermined direction and the direction opposite to the predetermined direction. The driving force of the input rotary element It can be selectively transmitted to the output side. Further, according to the present invention, the first spring clutch mechanism and the second spring clutch mechanism are arranged on the shaft member on both sides of the input rotary element mounted on the shaft member. Since the constituent elements that make up the element are arranged on the same axis, it is possible to
It is possible to obtain an electromagnetically controlled spring clutch mechanism capable of selectively transmitting driving force in one rotation direction.

[Brief description of drawings]

FIG. 1 is a sectional view showing a specific example of an electromagnetically controlled spring clutch mechanism constructed according to the present invention. FIG. 2 is an exploded perspective view showing the first spring clutch mechanism in the electromagnetically controlled spring clutch mechanism of FIG. 1 in an exploded manner. FIG. 3 is an exploded perspective view showing an exploded unit assembly in the first spring clutch mechanism of FIG. FIG. 4 is a sectional view showing a state in which the unit assembly in the first spring clutch mechanism of FIG. 2 is attached to the shaft member. FIG. 5 is a partially enlarged cross-sectional view for explaining a method of fixing the biasing spring member of the unit assembly of FIG. FIG. 6 is an exploded perspective view showing an exploded second spring clutch mechanism in the electromagnetically controlled spring clutch mechanism of FIG. 1. FIG. 7 is a perspective view showing a sleeve member and a rotation blocking member of the braking means in the electromagnetically controlled spring clutch mechanism of FIG. FIG. 8 is a side view showing an application example using the electromagnetically controlled spring clutch mechanism shown in FIG. 1. FIG. 9 is a view as seen from the line IX-IX in FIG. 2, 2a and 2b ... Electromagnetically controlled spring clutch mechanism 4, 4a and 4b ... Shaft members 6, 6a and 6b ... Gears 8, 8a and 8b ... First spring clutch mechanism 10, 10a and 10b. 2 Spring clutch mechanism 30 and 116 ... Rotor 32 and 118 ... Amateur assembly 34 and 120 ... Electromagnetic means 36 and 122 ... Coil spring means 50 and 132 ... First boss member 72 and 154 ... Amateur 74 and 156 ... Supporting members 76 and 158 ... Bias spring members 104 and 172 ... Second boss members 180, 180a and 180b ... Braking means 182 ... Rotating member 188 ... Friction member 192 ... Braking member

Claims (5)

[Claims] 1. A shaft member rotatably mounted, an input rotary element rotatably mounted on the shaft member and rotationally driven in a predetermined direction and in a direction opposite to the predetermined direction, and one side of the input rotary element. A first spring clutch mechanism disposed on the shaft member, and a second spring clutch mechanism disposed on the shaft member on the other side of the input rotating element. The spring clutch mechanism includes (a) a rotor rotated integrally with the shaft member, and (b) an armature disposed between the rotor and the input rotary element and facing one surface of the rotor, A support member disposed between the rotor and the input rotating element and rotatably mounted on the shaft member, and a support member disposed between the support member and the armature and separating the armature from the one surface of the rotor. Bias spring member that is elastically biased in the direction An amateur assembly where it is included,
(C) electromagnetic means for magnetically attracting the armature to the one surface of the rotor against the elastic biasing action of the biasing spring member, and (d) rotating integrally with the shaft member. No. 1 boss member, (e) a second boss member that rotates integrally with the input rotary element, and (f) is fitted and contracted across the first boss member and the second boss member. A coil spring means for drivingly connecting the first boss member and the second boss member to each other, wherein the second spring clutch mechanism is (a) a rotor that is rotated integrally with the shaft member. And (b) an armature disposed between the rotor and the input rotary element and facing one surface of the rotor, and an armature disposed between the rotor and the input rotary element and rotated by the shaft member. A support member that is freely mounted, and is disposed between the support member and the amateur. An armature assembly that includes a biasing spring member that resiliently biases the armature away from the one side of the rotor;
(C) electromagnetic means for magnetically attracting the armature to the one surface of the rotor against the elastic biasing action of the biasing spring member, and (d) rotating integrally with the shaft member. No. 1 boss member, (e) a second boss member that rotates integrally with the input rotary element, and (f) is fitted and contracted across the first boss member and the second boss member. And a coil spring means for drivingly connecting the first boss member and the second boss member to each other, and one of the first spring clutch mechanism and the second spring clutch mechanism is biased. When this is done, the rotation of the input rotary element in the predetermined direction is transmitted to the shaft member, and when the other of them is biased, the rotation of the input rotary element in the opposite direction to the predetermined direction is transmitted to the shaft member. An electromagnetically controlled spring clutch mechanism characterized by the above. 2. The electromagnetic control spring according to claim 1, wherein in the first spring clutch mechanism and the second spring clutch mechanism, the electromagnetic means is arranged on the other side of the rotor. Clutch mechanism. 3. The first spring clutch mechanism and the second spring clutch mechanism, wherein the coil spring means extends from one end connected to the armature assembly to the other end connected to the input rotary element. 3. The winding method according to claim 1, wherein the input rotating element and the armature assembly are wound in a direction in which the input rotating element and the armature assembly are contracted when the input rotating element and the armature assembly are relatively rotated in association with the rotation of the input rotating element. The electromagnetically controlled spring clutch mechanism described. 4. A second spring clutch mechanism in the first spring clutch mechanism, the second boss member, the first boss member, the biasing spring member, the armature assembly, the rotor, the electromagnetic means, and the second spring clutch mechanism. Of the second boss member, the first boss member, the biasing spring member, the armature assembly, the rotor and the electromagnetic means on both sides in the axial direction of the shaft member with respect to the input rotary element. The electromagnetically controlled spring clutch mechanism according to any one of claims 1 to 3, which is arranged substantially symmetrically. 5. The electromagnetic system according to claim 4, wherein in the first spring clutch mechanism and the second spring clutch mechanism, the second boss member is fixed to the shaft member by press fitting. Control spring clutch mechanism.